The mechanics of how to plant a tube system are straightforward. This article is on my first attempt at using one. It worked from the start, straight off the bat, and since then I’ve tried three other versions of the system. These were basically just tweaking it for different purposes. It really saves space in the garden in multiple ways.
I was first inspired by a book which is basically on how to up your productivity in a permaculture garden by Linda Woodrow. 1996. The permaculture Home Garden from Penguin Books Australia with a forward by Bill Mollison. She accomplishes her goals by using organic companion aligned dense planting patterns, chicken tractors and tube propagation in the most productive way possible. My garden layout and size cuts out the chicken tractors, but the tube system has proved to be an absolute watershed in my gardening practice.
Before you start with the process and find out how to plant a tube system, you will need to decide on either using seeds or seedlings and if you need seedlings, you will need to raise plants. I sowed lettuce, onions and dill in six packs some weeks before building the system.
The next part of how to plant a tube system is to collect material to make tubes. It has to be recycled, for both economy and ethics. The tubes would fall over if left to stand alone so they need to be packed side by side in a tray. I used some available bread crates, and later on I used polystyrene fish boxes which can be got free. The easiest boxes to get are cardboard boxes. The disadvantage is that with all the watering their bottoms get soft and they can’t be carried around. To move the plants in a cardboard box you need a new dry box, and to transfer the plant tubes into it one by one before carrying them away. The boxes can get really heavy, and even dry cardboard boxes tend to cave in while you carry them and squash the plants around. I much prefer the strong bread crates, as seen above, if I can get them.
Linda Woodrow collects 1 litre plastic milk bottles and cuts them to make tubes. Perhaps these are cheap in Australia. I can’t afford to buy milk that way, as its expensive here, and milk in bags is cheaper and the bags are very useful. In the end I collected other bottles, like 2 Litre water bottles, Amasi (sour milk) bottles, and soda drink bottles. I took out a carrier bag whenever we walked the dog and found plenty of plastic bottles lying in gutters along the road.
The next step in how to plant a tube system is to make the tubes. I cut the tops and bottoms off the bottles with a self sharpening bread knife and a pair of scissors, to leave the tube with the greatest length possible. The tubes must have straight sides. The straighter the sides, the easier they are to remove when the plant has grown, and the less trauma the plant endures.
Linda Woodrow uses tubes for this reason, to lessen transplant trauma and to be able plant out vegetables when they are quite large already, so that her garden is at peak production. She only grows plants in the ground for a fraction of their life. After a few months the harvest occurs and then chickens come in and clean up before the next planting.
The next step in how to plant a tube system is filling the bottoms of the tubes and arranging them in the trays. I stuff the bottom of the tube with crumpled newspaper and tamp it down with my trowel handle. With cardboard tubes we use the cardboard cups torn off egg boxes as bottoms. I have got quite quick at doing this, but expect the assembly to to take time. It will pay off in the end.
The next stage in planting up this tube system is to fill the tubes with potting mix for growing seedlings. I mixed 50/50 sand and compost. I then sifted it to remove large bits of compost, and filled the tubes through a funnel made of rolled newspaper. The cardboard tubes I filled by pouring potting mix over the whole box, sweeping it in until they were filled level, and then moving them one by one into another box container, leaving the sand in the between spaces behind.
After the tubes are full of earth, water them with a fine spray (see my cheap recycled watering rose) and either sow seeds in them or plant seedlings, depending on how much space you have. In my home garden space is at a premium, so I sowed seed in six packs first. Linda Woodrow claims that seedlings can easily be transplanted when they are very young, barely two leaves plus a seed leaf, and that later transplanting is more traumatizing.
I found that in our winter, or perhaps it was the transplant shock, these tiny seedlings in the tubes just became static and did not grow for months. This is why I began to tweak the system. I’ve tried smaller tubes, though the smaller bottles are hard to find, as well as toilet rolls, in which I sow direct, avoiding transplanting shock altogether.
When the plants are quite large and robust, plant them out in their final location. By this time they will have well developed root systems. Dig a hole exactly the size of the tube, plant the tube and then gently pull it up till it is like a collar around the plant to protect the new transplant from pests. When it is obviously thriving, remove the tube completely. In the case of cardboard toilet rolls, they rot, and you do not have to remove them. Actually the hair roots may be embedded in the cardboard and shifting it up will probably do more harm than good.
Optimizing productivity in the beds
You will see that your vegetable plants literally ‘hit the ground running’ and thrive. You save space in many ways. Seeds planted direct take time to germinate, and then time to grow, all the while exposed to the danger of scratching birds and pests which like fresh young seed sprouts. Months later you may have a sizable plant and then you must wait a while longer to harvest. However, with tubes your bed space is productive all the time, carrying plants close to harvest which just need to get a bit larger, rather than grow up all the way from seed. Your beds also only contain flourishing plants, as the ones that are weak and die off are left behind when you plant out from the tube tray. All in all from sowing to a 30 cm high dill plant I can cautiously pick from was 3 months, or 11 weeks. That isn’t enormously fast, but I am working on refining the method by sowing direct into the tubes.
Optimizing your nursery space
If you use small tubes, you can sow more seeds and also save space in the nursery. The tubes are packed tight together, and its easy to transport a lot of them at one time in their trays, which saves an enormous amount of time.
Tube systems suit organic propagation more than plug trays
The other advantage of this system, against plug trays for instance, is that there is enough soil for a seedling to grow without artificial feeding. In a plug tray the root space is so small, I’ve never got big plants using organic methods. Other people can perhaps. It is all a learning curve, and I’m in the enthusiastic beginner part of the curve, and I think what makes my life easier helps a lot of people who are there with me.
This method in which I describe how to plant a tube system can use
recycled materials which is a big plus. You can also re-use your plastic tubes again and again, though they do require time investment in the beginning. I hope you will find this article
useful and that it will help you with your gardening. I would be thrilled if you let me know of any
successes and problems if you try it. I will be making an album with pictures of the four variations of the tube system I've used thus far. Access it through the link below.
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Another way to recycle plastic in the nursery
I don't know what to do with these milk bags. Other ways of buying milk I can't afford. But they make PERFECT planting bags.
triple benefit for the environment is beach bottles
A ready source of plastic bottles for the tube system of planting, or vegetable seed sowing, is the beach. Here we pick up the bottles washed up with the …
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Are the flowers edible?